Water, a basic resource, was not easy to come by. Nesters had to work the ground for every basic need, including this one. Fortunately, they had the technology to transform the land and the patience to work with it—though the need for water left them with little choice. The windmills were necessary for pumping just enough water, not only for a family to drink, but also to keep the livestock hydrated. The West’s most precious resource was water.